The BBC announced this week that Agyeman will co-star as Shelley, with series lead Bernard Cribbins, in the children's show which features a retired fisherman, Old Jack (Cribbins), who lives in a little village on the North Yorkshire Coast, Staithes, as he regales tall stories from inside his old fishing boat. The series is a mix of live action and animation which allows Old Jack to wander along the seabed, visit tropical islands and fly high in the air on balloons always accompanied by his faithful dog, Salty.
It will be shown on CBeebies early in 2013.
Agyeman is best known for her role as Martha Jones on the hit BBC series Doctor Who, and its spinoff, Torchwood. Agyeman vacated the BBC franchise in 2010 to join the cast of ITV's Law & Order: UK.
She'll make her US television debut on the CW's Sex In The City prequel/spinoff The Carrie Diaries. That series is scheduled to premiere as a mid-season entry for the CW.